690 BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 



to us of generic value, for we are ignorant as to what difference in function it 

 corresponds. 



The zoarial form Filisparsa D'Orbigny, 1852, contains species showing several 

 sorts of ovicells, particularly those pertaining to Tervia and Oncousoecia, but the 

 great majority of the species show no ovicells. The two American species of 

 Oncousoecia are precisely like Filisparsa in zoarial growth. To facilitate the de- 

 termination we place this old genus at the end of this family and maintain it for 

 the species showing 110 ovicells. 



ONCOUSOECIA VARIANS Eeuss, 1869. 

 Plate 157, figs. 17-24. 



1847. Eornera biloba REUSS, Die fossilen Polyparieu des Wiener Tertiarbeckens. Haidin- 



ger's naturwissenchaftliche, Abh. 2, p. 43, pi. 6, fig. 24 (fide Reuss). 



1847. Pustulopora anomola REUSS, Idem. (p. parte), p. 41, pi. 6, figs. 19, 20, (fide Reuss). 

 1862. Filisparsa tenella STOLICZKA, Oliogociine Bryozoen von Latdorf in Sternhurg, Sit- 



zungsberichte der k. Akademie der Wisseuschaften, Wien, vol. 45, p. 80, pi. 1, fig. 5. 

 1869. Filisparsa various REUSS, Die fossilen Polyparien des Wiener Tertiarbeckens, 



Haldinger's naturwiss. Abhand, vol. 2, pp. 286, 291, pi. 35, figs. 14-15. 

 1869. Filisparsa various REVSS, Zur fossilen Fauna der Oligociinschichten von Gaas, 



Sitzungsberichte der k. Akademie der Wissenschaften, Wien, vol. 59, p. 479 (34). 

 1877. Filisparsa varians MANZONI, I Briozoi fossili del Miocene d'Austria ed Ungheria, 



Denkschrifte der mathernatiseh-naturwissenschaftliche Klasse der k. Akademie 



der Wissenschaften, Wien, pt. 2, vol. 37, p. 9, pi. 7, fig. 27. 

 1877. Hornera biloba REUSS-MANZONI, I Briozoi fossili del Miocene d'Austria ed Ungheria, 



Denkschriften der mathematische-uaturwissenschaftliche Klasse der k. Akademie 



der Wissenschaften, Wien, vol. 38, p. 9, pi. 7, fig. 25. 

 1877. Filisparsa, species MANZONI, Bryozoaires du pliocene superieur de 1'ile de Rhodes, 



Memoires Socit g^ologique de France, ser. 3, vol. 1, p. 69, pi. 3. fig. 18. 

 1877. Filisvarsa delvauxi PERGENS, Pliociine Bryozoen von Rhodes, Annales des k. k. 



Naturhistorischen Hofrnuseums, Wien, vol. 2, p. 6. 

 1877. Filisparsa varians PEKGENS, Note preliminaire sur les Bryozoaires fossiles des 



environs de Kolosvar, Annales Socit6 royale malacologique Belgique, vol. 22, p. 6. 

 1889. Filisparsn delvauxi PEEGENS, Note succincte sur les Bryozoaires du Miocene de 



la Russie mridionale, Bulletin Societe royale malacologique Belgique, vo. 24, p. 2. 



1891. Filisparsa varians NEVIANI, Contribuzione alia coiioscenza dei briozoi fossili 



italiani, Briozoi postpliocenici del sottosuolo di Livorno, Bolletino Societa geologica 

 italiana, vol. 10, p. 139 (43), pi. 4, fig. 21. 



1892. Filisparsa varians WATERS, North Italian Bryozoa, Pt. 2, Cyclostomata, Quarterly 



Journal Geological Society, vol. 47, p. 157. 

 1896. Filisparsa varians PEEGENS, Bryozoaires des environs de Buda, Bulletin Societfe 



beige da ggologie, paleontologie et d'hydrologie, vol. 10, p. 362, fig. included. 

 1900. Tubulipora (Filisparsa) rarians NEVIANI, Briozoi neogenici delle Calabrie, Paleonto- 



graphia italica, vol. 6, p. 234 (regional bibliography). 

 1904. Tubulipora. (Filisparsa) varians NEVIANI, Briozoi fossili di Carrubare, Bolletino 



Societa geologica Italiana, vol. 23, p. 548 (sep. 46). 

 1908. Filisparsa varians CANU, Les Bryozoaires fossiles des Terrains du Sud-Ouest de 



la France, Bulletin de la Soeiete geologique cle France, ser. 4, vol. 8, p. 884. 



